Home / 3,213.48-4,819.78-1,022.43

Finding the Fourth Proportional to 3,213.48, 4,819.78 and 1,022.43

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Solution

The fourth proportional to 3,213.48, 4,819.78 and 1,022.43 is: 1,533.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.48 : 4,819.78 = 1,022.43 : x
  2. Step 2: Convert to fraction form
    3,213.48/4,819.78 = 1,022.43/x
  3. Step 3: Cross multiply
    3,213.48x = 4,819.78 × 1,022.43
  4. Step 4: Simplify right side
    3,213.48x = 4,927,887.67
  5. Step 5: Solve for x
    x = 4,927,887.67/3,213.48
  6. Step 6: Final answer
    x = 1,533.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.